Smith Publications

9 Publications

Compost Trials in Newly Planted Orchards

Smith, T. 1995-1997. This WSU Chelan-Douglas County Extension website summary features results from in-orchard compost trials in North Central Washington. Report includes an overview of compost materials and use in orchards.

Influence of orchard floor management and compost application timing on N partitioning in organically managed apple trees

TerAvest, D., J.L. Smith, L. Carpenter-Boggs, L. Hoagland, D. Granatstein, and J.P. Reganold. 2010. HortScience. 45:637-642.

Carbon sequestration under irrigated switchgrass (Panicum virgatum) production

Collins, H.P., Smith, J.L., Fransen, S.C., Alva, A., Kruger, C.E., & Granatstein, D.M. (2010). Soil Science Society of America Journal. 74(6), 2049-2058.

Yield, Protein and Nitrogen Use Efficiency of Spring Wheat: Evaluating Field-Scale Performance

Chapter 17 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Orchard floor management effects on nitrogen fertility and soil biological activity in newly established organic apple orchard.

L. Hoagland, L. Carpenter-Boggs, D. Granatstein, M. Mazzola, J. Smith, F. Peryea, and J. Reganold. 2008. Biology and Fertility of Soils online.

Storing Winter Vegetables – Winter 2008

Article in Sustaining the Pacific Northwest Newsletter

Brassica juncea seed meal as a fumigant in organic greenhouse production

Poster presentation – BIOAg Research Symposium 2008.

25x’25 is the Path to a Secure and Clean Energy Future – Summer 2007

Article in Sustaining the Pacific Northwest Newsletter

Organic Control of Cherry Fruit Fly

The active ingredient spinosad, a microbial insecticide, was tested for efficacy against cherry fruit fly. Several formulations were tested. The GF-120 product, a combination of spinosyn and a feeding attractant, proved very effective. A new system of control using point sources versus complete canopy cover was developed. The use of GF-120, an organically approved material, for cherry fruit fly control has become widespread among cherry producers in the region, both conventional and organic. It is very effective, non-toxic to humans, low impact to beneficials, and low cost due to the low volume used and quick application.